Built on the success of the standard GravelKing, the GravelKing SS Plus is designed as a dryer-condition, race day ready and fast rolling tire, made for those who want to go fast while maintaining great control, traction and climbing prowess. Smooth, diamond pattern center tread with more aggressive side lugs, enabling riders to maintain speed and control Supple 120 TPI casing with a nylon puncture resistant belt Proprietary ZSG (Zero Slip Grip) natural compound Additional bead-to-bead layer of ProTite puncture material for increased protection against tread and sidewall cuts Folding (Aramid) Bead with ProTite Shield Plus Protection Specs Labeled Size: 700 x 28, 700 x 32 Color: Black PSI: 110 ISO Width (mm): 28, 32 ISO Diameter: 622 / Road / 29" Flat Protection: Tread and Sidewall Tire Intended Use: Gravel , Road Defined Color: Black Tire Type: Clincher TPI: 120 Weight: 340 Tire Bead: Folding Tire Diameter: 700c